{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd976a1cd67d8a48468d2cc835abaf578a5f56ce00ef9a995c627158e7c1c91b1",
    "signature": "0x45768850a27caec556ebd871d3112c97f225b44c168ab4a4aa8861b59fda66962a4249203d0b7afdb05009372c2ca6b221c79d5b1479ae050426ffdfd3b513581c",
    "signer": "0x093545f1fF8cDaCa784Bcba6834bE040F13a526C",
    "userId": "231247460"
  }
}